Danfoss VLT FC 103 Operating Instructions Manual page 31

Start Up and Functional Tes...
I I nspect for
Environmental consider-
ations
Fusing and circuit
breakers
Earthing (Grounding)
Input and output power
wiring
Panel interior
Switches
Vibration
Table 3.1 Start Up Check List
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VLT Refrigeration Drive FC 103 1.1-90 kW Operating Instructions
Description
•
See equipment label for the maximum ambient operating temperature limits
•
Humidity levels must be 5-95% non-condensing
•
Check for proper fusing or circuit breakers
•
Check that all fuses are inserted firmly and in operational condition and that all circuit breakers are
in the open position
•
The unit requires an earth wire (ground wire) from its chassis to the building earth (ground)
•
Check for good earth connections (ground connections) that are tight and free of oxidation
•
Earthing (grounding) to conduit or mounting the back panel to a metal surface is not a suitable
earth (ground)
•
Check for loose connections
•
Check that motor and mains are in separate conduit or separated screened cables
•
Inspect that the unit interior is free of dirt, metal chips, moisture, and corrosion
•
Ensure that all switch and disconnect settings are in the proper positions
•
Check that the unit is mounted solidly or that shock mounts are used, as necessary
•
Check for an unusual amount of vibration
MG16E202 - VLT® is a registered Danfoss trademark
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